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HeatherCertified GKH Gardening Expert

Answered on September 5, 2011

Crepe myrtles should be fine in most areas in Arizona. It is only the very interior of the state where they may have problems. This is a zone map for AZ (https://www.gardeningknowhow.com/planting-zones/arizona-planting-zones.htm). The areas in green may have problems growing some kinds crepe myrtles and would need to have cold hardy crepe myrtles if you wanted to grow them there.